Installation for producing carbonated beverages



E. FERNHOLZ Jan. 15, 1935.

INSTALLATION FOR PRODUCING CARBONATED BEVERAGES Filed July 15, 1953 IZ'QIJ Jaye/afar: 9 I

Patented Jan. 15, 1935 UNITED STATES 1,sss.oss I INSTALLATION FOR PRODUCING CAR- BONATED BEVERAGES Ernst Fernholz, Berlin, Germany Application July 15, 1933, Serial No. 680,636

lClaim.

The installation according to the invention is intended for the production of carbonated beverages. It has several important advantages over the apparati which have hitherto become known,

5 and they consist in great simplicity, compactness and low weight, in an easy way of handling it, on low costs of manufacture, safeness in operation and last but not least in the far superior quality of the produced beverage.

In consequence of these advantages the new installation is particularly suitable for household use, excursions and expeditions, for military purposes, fiying-machines and railway-trains, in other words, it is of particular importance where it is desirable to keep the weight and the occupied space of equipments as low as possible.

According to the invention the carbonic acid containing steel bottle is fitted with a closing valve protected by American Letters Patent No. 1,910,283 acting as a bottle-valve and a pressure reducing valve while the closing valve of the liquid vessels contains a non-return valve of the type of the pneumatic tyre valve.

The invention further consists therein that the inwardly and the stopper containing the non-return valve provided with the so called squeezing closure. This construction prevents a blowing out of the stopper in case of an excessive high pressure within the mixing bottle and ensures a quick and ready mounting and removal of the stopper. Finally according to the invention the ends of the hose are fastened to the connecting studs of the valves of the steel bottle and mixing vessel respectively by means of a screw spring, whereby in case of excessive pressure arising within the receptacle, the hose connection is opened and a bursting or other injuring of the containers and their fittings is avoided.

Upon the accompanying drawing a suitable form of the new installation is illustrated and it is:

Figure 1 a front view of the installation and Figure 2 a section of a detail of the mixing vessel without closure showing the construction of the mixer neck.

Fig. 3 shows on an enlarged scale a sectional view of the closure of the mixing vessel.

The steel bottle for storing the carbonic acid is denoted with 1 while 2 is the casing of the com bined bottle and reducing valve. A detailed description of this valve is not required as it is contained in the prior American Letters Patent No. 1,910,283 and as also no protection is asked for the valve itself.

rim of the neck of the mixing bottle is turned 3 is a cap-shaped nut roughened on its cylindrical outside wall. By screwing down this nut the pressure of the bottle is. reduced to the correct working pressure. With 4 the mixing vessel consisting of light metal is denoted. 5 is the hose which connects the stopper of the carbonic acid bottle with the stopper 6 containing the non-return valve. Within the stopper 6 and around the non-return valve stem a rubber ring is placed which by screwing down the disk shaped nut '7 is m forced against the inner wall of the neck of the mixing vessel. The stopper 6 ends on the top in the threaded stud 8 to which the connection 9 of the hose 5 is screwed. This hose is held on the connecting studs 01' the stoppers 2 and6 respectively by a screw-spring 10 and 10' respectively. This mode of connection has the advantages that in case of high pressures arising in one or the other of the receptacles, the compressed gas passes between the connecting studs and the inner wall of 20 the hose, whereby the screw-spring is extended sideways and the hose itself blown off. The neck of the mixing vessel is turnedover inwardly as illustrated in Figure 2. In addition thereto the neck is directly beneath the rim provided with a ring of holes 12. The turned over rim 11 in conjunction with the ring of holes 12 serves to remove the excess pressure when, after the beverage has been produced, the closure is loosened. The turned over rim also prevents the rubber ring and thereby the closure from being blown off the bottle.

I The neck of the mixing vessel, as shown in Fig. 2, has its lip 11 inwardly turned for co-operation with the stopper shown in Fig. 3, and the said neck is also provided with a series of small holes 12 for a purpose which will be described. The stopper consists of a body 8 having an annular flange 28 above which a rubber ring 29 surrounds the body. Bearing upon the upper edge of the rubber ring is a cap 6 having a skirt 35 formed to fit over the neck of the vessel 4. When the stopper is applied to the mixing vessel, the body 8 is inserted in the neck of the vessel until the rubber ring 29 is below the inturned lip 11, whereafter the nut 7 is screwed down upon an external screwthread formed at the upper part of the body 8. Through the intermediary of a packing washer 30 and the cap 6 bearing upon the upperedge of' the ring 29, the said ring is laterally deformed until it tightly grips the inside of the mixing vessel neck below the lip 11, thereby firmly securing the stopper on the mixing vessel and at the same time closing the holes 12.

The lower part of the body 8 has an extension 31 with a blind bore which communicates with a lateral port 32. This port is covered by a rubber sleeve 33 to constitute a non-return valve like a pneumatic tyre valve.

In the following the operation of the installation is described when producing soda water:

The'mixing vessel 4 is filled up to of its capacity with water preferably as cold as possible. The stopper 6 containing the non-return valve is'then mounted and fastened on the mixing.

vessel by placing it on to the neck and then turning the nut 7 to the right until it cannot be moved any further. By screwing the hose connection 9 on to the threaded stud 8 the steel bottle land the mixing bottle 4 are connected with each other. Now the cap shaped nut 3 is screwed down until the lower rim thereof comes into contact with the valve 2. Thereby the bottle is opened and the carbonic acid passes with the right pressure through the hose into the mixing vessel 4. After about 20 seconds have passed the mixing vessel is turned downward and vigorously shaken and this process is repeated until any hissing noise coming from the interior has ceased. The cap 3 is then turned back again until it moves freely, whereby the steel bottle is closed again. Upon the removal of the stopper 6 from the mixing vessel 4 the soda water may be poured out for use.

Sparkling wines (champagne) may be produced by using a light wine instead of water and adding thereto according to taste some brandy and sugar or a special prepared champagne essence.

The installation is also particularly suitable for producing any kind of lemonades. milk-champagne or medicinal waters.

I claim as my invention:

In a device for producing carbonated beverages, the combination or a mixing vessel having a tubular neck provided with an inturned flange, a valve member having a passage therethrough, extending into said neck, said valve member having a flange near its lower end, a rubber ring about said member above said flange a nut screw threaded upon the upper end of said member for compressing said ring between the inturned flange on the neck and the flange on said valve member and a check valve on the lower end of said valve member to close said passage against outflow.

ERNST FERNHOLZ. 

